Sawing-machine



(No Model.) Y

J. 5.*00PP040K. SAWING MAGHINE.

Patented Oct. 21, 1884. Y

INVENTOR Qi; I'INESSES Wsw W RM HM Sw UNITED STATES PATENT QEEICE.

JAMES H. COPPOCK, OE DEER GREEK, INDIANA.

SAWING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 307,018, dated October21, 1884.

Application filed June 30, i834.

To a/ZZ whom t may concern:

Be it known that l, JAMES H. CoProok, of Deer Creek, in the county ofCarroll and State of Indiana, have invented a new and useful Improvementin Sawing-llIachines, which improvement is fully set forth in thefollowing specification and accompanying drawing, in which the figure isa perspective view of my improved sawing-machine.

The present invention relates to an improvement in sawing-machines inwhich I desire to provide a device that is both portable and easilyadjusted.

My device consists of an upright frame having journa-led transverselytherein a pair of shafts having thereon a spur-wheel and pinion, andoutwardly communicating by means of a pitman-rod with a saw-shaft, allof which will now be fully set forth in detail;

In the accompanying drawing, A is a base of any suitable form,preferably of wood, having journaled therein on its upper face a pair ofposts, B and B', with a suitable transverse piece, O, secured in anysuitable manner at the upper ends. These posts are placed at a littledistance apart, and have journaled thereon about midway between theupper and lower parts a transverse shaft, D. This shaft is provided atone end with a pulley, E, and outwardly, if desired, a handle, F.Between these posts on the shaft D, I provide a spur wheel, G, engagingwith a pinion, H, on the shaft I beneath. The said shaft lis ,journaledto the posts parallel with the shaft D, and has at the end outwardlyfrom the frame a circular disk, J, secured thereon. This disk J ispreferably placed on the opposite side of the frame from the pulley Eand crank F. 'Ona the side of the frame beneath the disk J a shaft, K,is hinged, extending forward some distance. A pair of keepers, L, areplaced on this shaft, and have sliding therein asaw-shaft, M, theoutward end having secured thereto a suitable saw, N. A pitman-rod, O,is de` signed tobe pivoted to the disk J, and engages (No model.)

with the saw-shaft M. At the parallel part of the frame a saw-guide, P,is hinged, eX- tending forward over the saw and designed to engage withthe upper part of the log to be operated upon. A lever, Q, secured atits forward end to one side of the frame-post B', has a cord, It,extending up over a pulley, S, and forward around a pulley, T, in thesaw-dog l), and downward to the forward end of the sh aft K, to which itis secured. By means of said lever Q and cord It the saw-shaft may beraised or lowered, as may be found desirable. The lever Q is designed toengage'with a series of notches on the post B', by means of which it maybe held in any convenient position.

The operation of this device, as will be noticed, is very simple, andconsists, principally, in the proper adjustment of the saw-shaft bymeans of the lever QA and the cord R, after which the reciprocal motionof the saw is produced by the rotary motion of the crank E, or, if poweris designed to be applied otherwise, by means of a beltl (not shown)operating upon the pulley E.

Vhat I claim is- The combination, in a erosscut-sawing machine, of themain frame, means for securing this frame tothe ground, the saw-dog I),pivoted to said frame and provided with a spike on its free end, thereciprocating saw-shaft M, the shaft K, pivoted to said frame, thekeepers or guides L L, pitman O, disk J, the cord R, attached direct-lyto one of said keepers, the pulleys T S, lever Q, a rack for this lever,and the driving-gearing, all constructed and adapted to operatesubstantially as and for the purposes described.

In testimony that I claim the foregoing I have hereunto set my hand,this 23d day of June, 1884, in the presence ot witnesses.

J AMES H. COIIJOCK.

Titnessesa BRUCE F. NEwEn,

H. SEANKs.

